Odin and the rest for Christianity, and in return was to be made ruler of the country between the River Epte and the sea, and westwards as far as the borders of Brittany Rollo was also to be given the hand of the Princess Gisela in marriage. Rouen became the capital of the new Duchy of Normandy, and the old name of Neustria disappeared. The Northmen were not at this time numerous, but they continued to come over in considerable numbers establishing centres such as that of Bayeux, where only Danish was spoken. As in England, this warrior people showed the most astonishing adaptability to the higher civilisation with which they had come into contact, and the new generations that sprang up on French soil added to the vigour and daring of their ancestors the manners and advanced customs of France, although the Northmen continued to be called "The Pirates" for a considerable time. When Rollo died he was succeeded by his son William Longsword, and from an incident mentioned by Mr T.A. Cook in his "Story of Rouen," we can see the attitude of the Normans towards Charles the Simple. He had sent down to Rouen two court gallants to sympathise with the Princess Gisela, his daughter, for the rough treatment she had received at the hands of Rollo, but they were both promptly siezed and hanged in what is now the Place du Marche Vieux. Great stone castles were beginning to appear at all the chief places in Normandy, and when Duke Richard had succeeded Harold Blacktooth we find that the Duchy was assuming an ordered existence internally. The feudal system had then reached its fullest development, and the laws established by Rollo were properly administered. With the accession of Hugh Capet to the throne of France, Normandy had become a most loyal as well as powerful fief of the crown. The tenth century witnessed also an attempt on the part of the serfs of the Duchy to throw off something of the awful grip of the feudal power. These peasants were the descendants of Celts, of Romans, and of Franks, and their efforts to form a representative assembly bear a pathetic resemblance to the movement towards a similar end in Russia of to-day. The representatives of the serfs were treated with the most fearful cruelty and sent back to their villages; but the movement did not fail to have its effects, for the condition of the villains in Normandy was always better than in other parts of France.